Applications of remote sensing in the monitoring of rice crops
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Date
2006-12Author
Tan, Chue Poh
Koay, Jun Yi
Lim, Ka Sing
Saiful Bahari, Abu Bakar
Ewe, Hong Tat, Dr.
Chuah, Hean Teik, Dato' Prof. Dr.
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Remote sensing, which is the science of acquiring information re g a rding the earth's surface without physical contact, is becoming
i n c reasingly important in many fields today. Recently, remote sensing is finding its way into rice monitoring applications. Studies
on satellite images have shown that rice fields produce different brightness patterns at different plant growth stages, allowing the
fields to be classified. However, there is a need for further re s e a rch into understanding the interactions between electro m a g n e t i c
waves and rice fields through the development of a theoretical model. This paper describes the development of a theoretical model
that can be verified by field measurements to enable correct interpretation of remote sensing data and rice growth monitoring by
using the change detection method. Not much is known about how electromagnetic waves interact with rice fields and how rice
c rops scatter these waves back to the satellite. Even though rice fields can be classified using the backscattering values and the
rice growth can be monitored, a comprehensive study of the theoretical scattering model is crucial to ensure correct application
of remote sensing data. The objectives of this study are to investigate the relationship between microwave backscatter signature s
and rice growth and to monitor rice growth using satellite images. Results using multi-temporal RADARSAT i m a g e ry have
confirmed that the backscatter can create a good separation for rice planting stages.
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http://www.myiem.org.my/content/iem_journal_2006-177.aspxhttp://dspace.unimap.edu.my/123456789/13735
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